Evidence map›Paper›PMID 30267335›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2018

Methylenetetrahydrofolate reductase C677T polymorphism and susceptibility to epilepsy.

Vandana Rai, Pradeep Kumar

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Severe hyperhomocysteinemia due to MTHFR deficiency caused by a new mutation: A case report and literature review.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2024
    Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Methylenetetrahydrofolate reductase (AIMS neuroscience · 2021
    Article
  11. Interictal epileptiform discharges on electroencephalography in children with methylenetetrahydrofolate reductase (MTHFR) polymorphisms.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
    Article
  12. Lack of association between valproic acid response and polymorphisms of its metabolism, transport, and receptor genes in children with focal seizures.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Vandana RaiHuman Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur, 222003, India. raivandana@rediffmail.com.
Pradeep KumarHuman Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur, 222003, India.
Veer Bahadur Singh Purvanchal University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMethylenetetrahydrofolate reductase (MTHFR) gene C677T polymorphism was reported as risk factor for multiple diseases due to its role in conversion of homocysteine to methionine. The aim of the present meta-analysis was to find out the validity of association of C677T polymorphism with epilepsy susceptibility.

methodsPubmed, Science Direct, Springer Link and Google Scholar, databases were searched for relevant studies up to January, 31, 2018. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were performed using five genetic models. All statistical analysis was done by MetaAnalyst and Mix programs.

resultsExcept recessive model, significant association was found between MTHFR C677T polymorphism and epilepsy risk in other four genetic models (T vs C: OR = 1.29, 95% CI = 1.08-1.52, p = 0.004; TT vs CC: OR = 1.48, 95% CI = 1.19-1.82, p = 0.0003; TT + CT vs CC: OR = 1.20, 95% CI = 1.05-1.38, p = 0.008; TT vs CT + CC: OR = 1.35, 95% CI = 1.11-1.62, p = 0.002). Similarly, in the subgroup analysis based on ethnicity, significant association was found in Asian (T vs C: OR = 1.85; 95% CI = 1.15-2.99; p = 0.03) and Caucasian populations (TT vs CC: OR = 1.38; 95% CI = 1.10-1.1.73; p = 0.005). No evidence of heterogeneity and publication bias was detected in present meta-analysis.

conclusionIn conclusion, results of present meta-analysis suggested that 677T allele of MTHFR is significantly increases the epilepsy susceptibility.

Indexed as

CysteineEpilepsyFemaleGenetic Predisposition to DiseaseHumansMaleMethylenetetrahydrofolate Reductase (NADPH2)Odds RatioPolymorphism, Single NucleotideRisk FactorsThreonineCysteineMethylenetetrahydrofolate Reductase (NADPH2)ThreonineC677TEpilepsyHomocysteineMeta-analysisMTHFRPolymorphism

Identifiers

PMID30267335
OpenAlexW2894238065

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.